Wrench.



Patented Apr. 22,1919.

l. VIACCEVAIC. WRENCH.

APPLlcAloN FILED ri. 26. |918.

WITNESS Irma/WNW nnrnn JOSEPH MACECEWG, 0F EPITTSBURGH, PENNSYLVANA.

WHICH.

aser-,eta

Specification of `Letter. atent Patented Apr. 252, 1919 Application med February 26, 1918. Serial No. 219,227.

To all whom t may concern:

Be it known that 1, JOSEPH MACnCnvIG, a a citizen of the United States of America, residing at Pittsburgh, in the county of Allegheny and State of Pennsylvania, have invented certain new and useful improvements in 1Wrenches, of which the following is a specification.

r1`his invention relates to certain new and useful improvements in wrenches and designed primarily for use in tightening, loosening and removing nuts which bind or clamp elements employed in automobile engine construction, more particularly nuts not accessible to the ordinary type of wrench and for other purposes wherein the wrench is found applicable, and the invention has for its object to provide, in a manner as hereinafter set forth, a wrench which is simple in its construction and arrangement, strong, durable, eiiicient and convenient in its use and inexpensive to manufacture.

.With the foregoing and other objects in view this invention consists of the novel construction, combination and arrangement of parts, as hereinafter set forth and more specifically described and illustrated in the laccompanying drawings wherein is shown an embodiment of the invention, but it is to be understood that changes, variations and modificati-ons can be resorted to which come within the scope of the claims hereunto appended.

1n the drawings wherein like reference characters denote corresponding parts throughout the several views:

Figure 1 is an elevation of a wrench in accordance with this invention.

Fig. 2 is a sectional elevation.

Referring to the drawings in detail the wrench comprises a circular head 1, formed with a cylindrical shaft 2, which projects at right angles with respect to the head l.

rThe head 1, is formed with a seat or bearing surface 3, and also with a central openin 4.

ounted upon the bearing or seat 3, and surrounding the shaft 2, is a bevel-gear 5, which revolves about the shaft 2. rThe gear 5, is maint-ained in position by a Washer 6,

Y and a nut 7, the latter engaging with the shaft 2. The gear 5 has a collar '8, against which bears the washer 6.

The collar 8, has its periphery polygonal in contour. p

The reference character 9, denotes a sleeve which provides a socket 10, and the inner face of said sleeve 9, corresponds in contour to the periphery of the collar 8. The sleeve 9, is mounted upon the collar 8, and seated upon the gear 5, and is of greater length than said collar 8, so that the socket formed by the sleeve 9, can receive the nut which is to be tightened, loosened or removed.

Extending through and rotating in the opening 4 of the head l, is a. shaft 11, which has its forward portion projecting from the head 1 and carries a nut 12 and a was-her 1.3. Mounted on the shaft 11, is a pair of collars 14, 15; the latter'abuts against the head 1.

rlhe shaft 11 projects from a polygonal shaped reduced portion 17 formed on the forward portion of a shank 16. Mounted on the portion 17, is a bevel-gear 18, against which the collar 14C abuts. The gear 18 is formed with a collar 19, seated on the portion 17 and which abuts against a shoulder 20, on the shank 16.

rlihe nut 12 and washer 13 prevents lengthwise movement of the shank 16 and shaft 11 in one direction, and movement inthe other direction is'prevented by the collars 14, 15, these latter` also act as a spacing means between the head and gear 18.

r1`he'bevel-gear 18, meshes with the bevel gear 5. rThe shank 16, may be revolved by any suitable means but as shown, by a wrench handle 21. Y

The collar 8, is designed to receive sleeves 9, of different sizes so as to provide for the use of the wrench in connection with nuts of various sizes.

When the shank 16, is revolved, the gear 18 will revolve the gear 5, the latter carrying the sleeve 9 therewith, and loosening or tightening the nut as the case may be.

What I claim is: v

1. A wrench comprising a head, a stationary shaft carried thereby, a gear seated on the head and revolving about said sha-ft and provided with a collar, means carried by the sha-ft and engaging with the collar for retaining the gear on the shaft, a nut gripping element detachably connected with the gear by said collar, and revolved by the latter with said gear, a rotatable shank provided with a fixed gear meshing with and driving the first mentioned gear, a shaft' projecting from and rotating with the shank and eX- tending through the head, and means carried bythe rotatable shaft to prevent lengthwise shifting of the shank.

2. A. Wrench comprising e heed, a, stationary shaft carried thereby, e; gear seated on the head and revolving about seid shaft and provided with a collar, means carried by the shaft and engaging with the collar for retaining the gear on the shaft, e, nut gripping element detachably connected with the gear by seid collar and revolved by the latter with seid gear, -a rotatable shank having a reduced portion, a, fixed gear on seid reduced portion and meshing with and driving the rst mentioned gear, a, shaft extending from said reduced portion sind projecting through -said head and rotating Wlth the shank.

3. A wrench comprising a. head, a, stationary shaft carried t the heed and revolving about said shaft and provided with a colla-r, means carried by the shaft and engaging with the collar for reereby, a. geel' seated on montre taining the gear on the sliet, e nut gripping element detachably connected with the gear by Said collar and revolved bythe letter With the gear, a, rotatable shank provided with e gear meshing with and driving the rst men-4 tonedo gear, a, shaft projecting from and roteting With the shank and extending through the hemd, means carried by the rotatable shaft for spacing the heed from the gear carried by the shank, and Ineens carried by the rotatable shaft to prevent lengthwise movement of the shank;

in testimony whereof ll aiiix my signature in the presence ol two Witnesses.

l l JOSEPH MACECEVM". Witnesses: MAX H. SnoLovrrz,

' LUELLA H. SIMON. 

